1. Fire Control System (M1A1/M1A2 Abrams series)

3) Wait until "Ready to fire" box appears on the top left corner of the range digits

4) Point "o" thingy on target

5) Shoot

Re-adjust scope every time you switch ammo type. Each shell has its own ballistics, including coax machine gun.

Keep in mind that M240 coax has very high trajectory while firing on ranges over 900 meters.

2. BLUFOR Vanilla FCS (Merkava Mk.IV series)

This vanilla stuff is pretty much self-explanatory. You have Aiming/Lasing point, the icon with your gun position relative to the hull and commander camera. Also, you will have a target speed if you are targeting a moving target.

4) Wait for FCS to calculate corrections and adjust scope - message "RDY" will appear on the right of the range digits.

5) Shoot

Re-adjust scope every time you switch ammo type. Each shell has its own ballistics.

3. INDFOR Vanilla FCS (Leopard 2SG)

There is no point to explain this scope since it is still vanilla scope with a minor difference. You have Aiming/Lasing point, the icon with your gun position relative to the hull and commander camera. Also, you will have a target speed if you are targeting a moving target.